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[en] The Fukushima-Daiichi accidents in 2011 underlined the importance of severe accident management (SAM), including external events, in nuclear power plants (NPP) and the need of implementing efficient mitigation strategies. To this end, the EURATOM work programmes for 2012 and 2013 was focused on nuclear safety, in particular on the management of a possible severe accident at the European level. Relying upon the outcomes of the successful EURATOM SARNET and SARNET2 projects, new projects were launched addressing the highest priority issues, aimed at reducing the uncertainties still affecting the main phenomena. Among them, PASSAM and IVMR project led by IRSN, ALISA and SAFEST projects led by KIT, CESAM led by GRS and sCO2-HeRO lead by the University of Duisburg-Essen. The aim of the present paper is to give an overview on the main outcomes of these projects. (authors)
[en] Safety Codes & Guides: • AERB has developed safety standards, codes of practice and related guides & manuals, covering all stages of a project. • Codes set the minimum requirements that are to be fulfilled mandatorily by the facilities. • Codes formulated on the basis of internationally accepted safety criteria. • Guides contain detailed guidelines to implement specific parts of a safety code.
[en] Introduction: The 2nd SDG on SSC provide detailed guidelines for SFR designers to support practical application of the SDC in design process to ensure the highest level of safety; The 2nd SDG is now under the international review process (IAEA and OECD/NEA's WGSAR); GIF SDC-TF received the comments from IAEA and OECD/NEA's WGSAR. Concluding remarks: GIF SDC-TF greatly appreciate important comments from IAEA and OECD/NEA's WGSAR; GIF SDC-TF will revise the 2nd SDG on SSC including terminology and configuration.
[en] In Great Britain, the drop in reactivity that occurs when nuclear fuel is irradiated in a nuclear power reactor has typically not been claimed. Instead, criticality safety assessments have normally assumed that the fuel is unirradiated with no reduction in the fissile material present. Although this 'fresh fuel' approach is conservative, it leads to an overestimation of the calculated neutron multiplication factor (keff) and may lead to additional operational burdens being placed upon duty-holders. In future, it is possible that GB duty-holders may take credit for the reduction in reactivity, known as 'burn-up credit', that occurs when fissile material is consumed in a nuclear reactor. In order to provide authoritative and independent information on the key aspects of burn-up credit, the Office for Nuclear Regulation (ONR) commissioned a research project. This paper provides an overview of the key findings of this research and potential implications for the regulation and management of criticality safety in GB. A 'Regulator Question' set for use when assessing criticality safety cases is given that is intended to aid both regulator and duty holder in their assessments, which enables regulatory attention to be targeted proportionately on those areas of most importance
[en] Canadian Nuclear Safety Commission President, Rumina Velshi, will highlight some of the work that Canada's independent nuclear regulator has done in recent years as it prepares for and responds to advances in Canada's nuclear industry. President Velshi's remarks will address the importance of early and ongoing communications, agility and collaboration to address the proposed implementation of innovative technologies and approaches while ensuring safety at all times
[en] The NRC is strategically transforming and modernizing to prepare for safe deployment of Avanced Reactors. NRC's implementation action plans are ensuring readiness in important strategic areas. Leveraging flexible review strategies with safety focus: Core Review Team Approach; Robust pre-application engagement program; Regulatory Review Roadmap. Enhancing access to information to improve transparency and increase engagement.
[en] Summary: • RES future planning is challenged by uncertainties and changes within the U.S. nuclear industry. • RES remains committed to performing the right research at the right time for the right investment. • RES is implementing strategic initiatives to remain agile and efficient while maintaining the safety and security focus.
[en] The development and safe operation of nuclear installations in Europe is of vital importance for the future of nuclear energy. Helping to ensure the safe operation of nuclear power has always been one of the top priorities of EURATOM Research Framework Programmes. With the incentives of Horizon 2020, further integration towards an EU/EURATOM Research Area was achieved, better prioritisation at European and International levels based on updates of Research and Innovation agendas or deployment strategies, capitalisation of European Technology platforms and enhanced cooperation with International Organisations or Fora effectively happened. Evolutions towards European Joint Programmes together with EU/EURATOM Member States, confirm that research and innovation programmes successfully benefit from a truly added value of a concerted European approach in nuclear safety research and training advocated by the European Commission and EU/EURATOM Member States. This article details the issues dealt with in 2 fields: safety research and training of reactor systems in one hand and radioactive waste management on other hand
[en] The aim of the ACACIA project is to develop an automated generation system of accident operating procedures for a PWR. This research and development study, common at CEA and EDF, has two objectives: at mean-dated the realization of a validation tool and a procedure generation; at long-dated the dynamic generation of real time procedures. This work is consecrated at the realization of 2 prototypes. These prototypes and the technics used are described in detail. The last chapter explores the perspectives given by this type of tool.
[fr]Le projet ACACIA vise a realiser un systeme de generation automatique de procedures de conduite accidentelle pour les centrales nucleaires a eau pressurisee. Cette etude commune de recherche et developpement entre le CEA et EDF vise deux objectifs. A moyen terme, il s'agit de realiser un outil d'aide a la validation et a la conception des procedures. L'objectif a plus long terme est la generation dynamique de procedures en temps reel. Le travail effectue pendant la realisation de ce memoire a consiste a developper deux prototypes destines a demontrer la possibilite d'atteindre ces objectifs. Ces deux prototypes et les techniques mises en oeuvre sont decrits en detail. Un dernier chapitre explore les perspectives offertes par ce type d'outil a plus ou moins long terme.
[en] Conclusions: Level of SEC NRS involvement in Rostechnadzor activity on operators’ EPR control generally corresponds to the one established in IAEA TECDOC-1835 “Technical and Scientific Support Organization Providing Support to Regulatory Functions”. TSO participation in regulatory activities is a crucial factor to overcome the challenges faced both regulatory body and TSO.